1999 Montero Sport 3.5/3.0L A/T PCM to 1997 Montero Sport 3.0L M/T ECM Harness Pin-Out Conversion Table

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1 999 Montero Sport 3.5/3.0L A/T PCM to 997 Montero Sport 3.0L M/T ECM Harness Pin-Out Conversion Table Pin-outs were taken directly from the official Mitsubishi factory service manuals and as such may contain errors if the service manual documentation is in error. Not all pin-outs may be listed in the tables below. Note that these pin-outs are untested and use of these tables may result in vehicle component damage. As such, the user of this documentation accepts all liability and may not hold the distributor of this document liable for any damages that may occur. Do not attempt to use these tables without confirming that the pin-outs are correct! 997 M/T ECM FED MD33839/MD (GREEN 76-pin) 999 A/T PCM FED MD35756/MD36453 (BLACK 9-pin) 999 A/T PCM -> 997 M/T Harness BLACK Lead 4 AWG 3 GREEN Description (male) (female) 6 No. fuel injector 9 6 No. 2 fuel injector No. 3 fuel injector No. 4 fuel injector No. 5 fuel injector No. 6 fuel injector 6 3 Heated oxygen sensor heater (front) FED EGR solenoid FED 6 Ignition power transistor unit A 0 2 Ignition power transistor unit B 23 3 Ignition power transistor unit C 4 Stepper motor coil <A> 4 28 Stepper motor coil <A2> 7 5 Stepper motor coil <B> 5 29 Stepper motor coil <B2> Evaporative emission purge solenoid 32 8 FLYLD Condenser fan relay input 9 Volume air flow sensor reset signal 9 20 Fuel pump relay module 8 2 A/C compressor clutch relay Service engine soon/malfunction indicator lamp Heated oxygen sensor heater (rear) FED Evaporative emission ventilation solenoid 4 46 Sensor supplied voltage 8 45 Crankshaft position sensor Engine coolant temperature sensor Spark check signal (RPM signal?) Power supply (ignition switch: "ON") Power supply & ignition switch-ig circuit (body GND #3, #0) Camshaft position sensor Barometric pressure sensor Power steering pressure switch 37 Lead?CM I/O NOTES B+ votage applied to pin 8 from condenser fan motor relay; when PCM switches on its power transistor, condenser fan motor relay coil is energized, causing current to flow in the circuit 4x4 Extreme Sports v.0 Page of 4

2 49 MFI relay (power supply) Backup power supply Volume air flow sensor Intake air temperature sensor 72 6 FLYLD A/C switch 2 input B+ (A/C load high) to v (A/C load low); 65.4 F B+ to pin 6 / 59 F 2v to pin 6; PCM receives signal from A/C automatic compressor-ecu (pin 9) and determines idle-up speed according to high/low air conditioning load 59 6 Ignition switch-st GND (body GND #3) 9 GND for M/T conversion 58 6 Ignition switch-st 7 7 Heated oxygen sensor (front) FED Heated oxygen sensor (rear) FED Throttle position sensor Closed throttle position switch <3.0L Engine> 87 retain the 3.0L throttle body, TPS, IAC, etc. 80 Vehicle speed sensor 86 output pulse detection 83 A/C switch Data link connector circuit (OBD connector pin 7) 62 data link connector () 84 Data link connector circuit (OBD connector pin ) 56 data link connector () 57 Volume air flow circuit, Baro Pressure Sensor, IAT Sensor, ECT 92 Sensor, TPS Sensor, O2 Sensor (front), O2 Sensor (rear), Evap Emission Control System Pressure Sensor, Closed throttle position switch, MAP Sensor, Fluid temp sensor <A/T>, Input shaft speed sensor <A/T>, Output shaft speed sensor <A/T> GND 9 Manifold differential pressure sensor Fuel tank differential pressure sensor Ignition switch-ig FLYLD A/T control relay output B+ to trigger-relay controling B+ power to pins 77/89 (#9) 75 Auto-cruise signal line system circuit output B+; auto-cruise control ecu (pin 3) overdrive cancel signal; this pin doesn't need to be wired to anything 77 FLYLD 4 Solenoid valve power supply input B+ applied to pins 77/89 through std 4 terminal relay; relay swiched on by pin 50 when IG switch turned on 89 FLYLD 6 76 FLYLD 6 Body GND (#3) 24" flying lead ring terminal 88 FLYLD 6 97 FLYLD 6 0 Park/Neutral position switch P input B+ applied to pin 0 when selector lever is in the Park range 02 Park/Neutral position switch D input B+ applied to pin 02 when selector lever is in the Drive range 03 FLYLD Input shaft speed sensor kω; insert 350 Ω,.5w resistor; loops back to PCM pin FLYLD Output shaft speed sensor kω; insert 250 Ω,.5w resistor; loops back to PCM pin FLYLD Second solenoid valve input 68 F Ω - insert appropriate resistor in harness; constant B+ applied to solenoid (pin 06 through terminal 9) 07 FLYLD Torque converter clutch solenoid valve input 68 F Ω - insert appropriate resistor in harness; constant B+ applied to solenoid (pin 07 through terminal 0) 08 Park/Neutral position switch R input B+ applied to pin 08 when selector lever is in the Reverse range 09 Park/Neutral position switch 3 input B+ applied to pin 09 when selector lever is in the 3rd range 0 Park/Neutral position switch L input B+ applied to pin 0 when selector lever is in the Low range 3 FLYLD Data link connector circuit (connector pin 26) data link connector (2) C-82 2-pin PCM flash pin 26 4 FLYLD Data link connector circuit (connector pin 27) data link connector (2) C-82 2-pin INVECS-II pin FLYLD Under drive solenoid valve input 68 F Ω - insert appropriate resistor in harness; constant B+ applied to solenoid (pin 20 through terminal 9) 2 FLYLD Park/neutral postion switch N / "N" range light system circuit 2 input B+ applied to pin 2 when selector lever is in the Neutral range; bulb resistance??? Ω - insert appropriate resistor or bulb in harness, tap lead with resistor, attach other end to Body GND (#9) 22 Park/neutral position switch 2 input B+ applied to pin 22 when selector lever is in the 2nd range 23 FLYLD 7 Stoplight switch input brake depressed, B+ applied to pin 23 4x4 Extreme Sports v.0 Page 2 of 4

3 24 FLYLD Fluid temperature sensor output 5v 32 F kω / 22 F kω; insert.kω,w resistor ( k Ω, V); loops back to PCM pin Transfer low detection switch output 4L continuity / other than 4L no continuity; this pin doesn't need to be wired to anything 26 Pattern select switch input Hold switch; B+ when switch on/no voltage with switch off; this pin doesn't need to be wired to anything 29 FLYLD Low-reverse solenoid valve input 68 F Ω - insert appropriate resistor in harness; constant B+ applied to solenoid (pin 29 through terminal 0) 30 FLYLD Overdrive solenoid valve input 68 F Ω - insert appropriate resistor in harness; constant B+ applied to solenoid (pin 30 through terminal 9) B+ applied to 77, 89, 06, 07, 20, 29, and 30 from A/T Control Relay 2 wire harness for selector lever in N; apply B+ 3 AWG mm unless otherwise noted, wire gauge is 20 AWG (0.5 mm 2 ) 4 FLYLD = flying lead (2" lengh unless otherwise noted) * confirm in manual ? A/T PCM -> 997 M/T Harness BLACK GREEN Lead AWG Description (male) (female) Lead?CM I/O NOTES 7 A/T fluid temperature warning light <V4A5> <A/T> 20 A/C compressor clutch relay 22 2 Fuel pump relay module 8 50 A/T Control Relay System GND <A/T> 5 Fuel temperature sensor (Fuel temperature sensor circuit) run wire from fuel level/temperature sensor pin <00-04 fuel temperature signal/sensor> 59 Park/neutral position switch <A/T> 9 60 Fuel gauge unit (Fuel level sensor circuit) tap from fuel gauge circuit <97-04 fuel level signal/sensor pin 2> 75 Auto-cruise signal line system circuit 76 GND 77 A/T Control Relay System (solenoid valve PS) <A/T> GND Fuel level warning light intercept fuel level warning light signal/sensor pin <97-99> 03 Input shaft speed sensor system <A/T> 04 Output shaft speed sensor system <A/T> 0 Park/Neutral Position Switch System (L) <A/T> 22 Park/Neutral Position Switch System (2) <A/T> 09 Park/Neutral Position Switch System (3) <A/T> 02 Park/Neutral Position Switch System (D) <A/T> 2 Park/Neutral Position Switch System (N) <A/T> 08 Park/Neutral Position Switch System (R) <A/T> 0 Park/Neutral Position Switch System (P) <A/T> 4x4 Extreme Sports v.0 Page 3 of 4

4 20 Low/Reverse solenoid system valve circuit (underdrive) <A/T> 06 Low/Reverse solenoid system valve circuit (second) <A/T> 30 Low/Reverse solenoid system valve circuit (overdrive) <A/T> 07 Low/Reverse solenoid system valve circuit (torque converter clutch) <A 29 Low/Reverse solenoid system valve circuit (low & reverse) <A/T> 23 Stoplight switch system circuit <A/T> 24 A/T fluid temperature sensor system circuit <A/T> 2 Transfer low detection switch <V4A5> <A/T> Immobilizer/PCM communications line PCM/immobilizer control module must come from same vehicle/additional parts and wiring required 4x4 Extreme Sports v.0 Page 4 of 4

5 A/T Fluid Temperature Sensor Circuit >>>> Pin 24.5mm 2 >>>>. kω, W resistor PCM PCM Plugs >>>> Pin 03.5mm 2 >>>> 350 Ω, 3 W resistor >>>> Pin 04.5mm 2 >>>> 250 Ω, 3 W resistor ECM Harness Plugs <<<< Pin 57 <<<< 4x4 Extreme Sports v.3 Page 5 of 4

6 A/C Switch 2 and Condenser Fan Control Circuit Flywheel Circuit >>>> Pin 50 >>>> GND #3 A/T Control Relay <<<< Pin 77 <<<< B+ Battery/5A Fuse PCM <<<< Pin 6.5mm 2 <<<< Thermal Switch Close 70ºF, Open 60ºF (+/-5 ) B+ IG Switch On < Zener N5350BG Diode N5404 > Flywheel Circuit <<<< Pin 8.5mm 2 <<<< Condenser Fan B+ Relay (nna) GND 4mm 2 B+ 4mm 2 Condenser Fan B+ Battery/nnA Fuse F068 (070 F-563 Close 70ºF, Open 60ºF (+/-5)) 2570F068 (090 F-664 Close by 90ºF max, Open by 80ºF min) 4x4 Extreme Sports v.6 Page 6 of 4

7 Alternate thermal switch setup PCM Pin 6 Temperature Switch Circuit on@65 F B+ GND B+ Kemo Electronic 2 V= Temperature switch Kit [B048] Operating voltage: 2 4V= Current consumption: approx. 00mA at maximum Temperature switching range: approx C Relay contact: x ON Contact capacity relay: max. 25V, 3A Board dimensions: approx. 54 x 27 mm 4x4 Extreme Sports v.6 Page 7 of 4

8 A/T Control Relay Diagram Flywheel Circuit < Diode N5404 Zener N5350BG > PCM <<<< Pin 77 2mm 2 <<<< <<<< Pin 89.25mm 2 <<<< >>>> Pin 50.5mm 2 >>>> A/T Control Relay (30A) GND #3.5mm 2 B+ 2.5mm 2 Battery/20A Fuse <<<< Pin 06 3Ω <<<< <<<< Pin 20 3Ω <<<< <<<< Pin 30 3Ω <<<< <<<< Pin 07 3Ω <<<< <<<< Pin 29 3Ω <<<< 2mm 2 2mm 2 2mm 2 2v, 3Ω, 50w resistor (4A per solenoid) PCM <<<< Pin 2 Park/Neutral SW Solenoids: Engine: Idling Gear range: Nst gear, engine idling B+ Selector lever position: Park 6-9v Pin 89, 06, 07, 20, 29, 30 tap off of 77 Resistor 06, 20, 30 in paralel Resistor 07, 29 in paralel 4x4 Extreme Sports v.8 Page 8 of 4

9 Park/Neutral Position Switch, Position "N" Flywheel Circuit PCM >>>> Pin 50 >>>> <<<< Pin 77 <<<< IG Switch On A/T Control Relay GND #3 B+ Battery/5A Fuse Pin 2 <<<<>>>> <<<< B+.5mm 2 <<<< B+.5mm 2 >>>> Combination Meter Neutral Bulb GND.5mm 2 Wire the PCM so 'transmission' is in constant Neutral Mitsu '99 Neutral guage cluster bulb, resistor n Ω, or LED Alternative Combination Meter Neutral Bulb Circuit 3mm LED with protective diodes and capacitor m/whiteled.html; Kingbright 3mm cylindrical LED Pin 2 <<<<>>>> >>>> B+ >>>> Resistor / R < Zenner N4732A Resistor / R2 LED > \\ GND Kingbright 00 Cylindrical LED , , r=300 ohm,.5w, Tol ±% d2=green, 2.2v, 25ma r2=00 ohm,.5w, Tol ±% d2=red, 2v, 30ma r2=00 ohm,.5w, Tol ±% d2=yellow, 2.v, 30ma r2=00 ohm,.5w, Tol ±% Example of a circuity that maintains a constant voltage across the LED as battery discharges to maintain constant brightness of LED. 4x4 Extreme Sports v.9 Page 9 of 4

10 On-Board Diagnostics (OBD) Flash <<<< Pin 3 PCM <<<< Phone/Audio 3.5mm Stereo Jack Phone/Audio 3.5mm Stereo Plug Openport 2.0 Mitsubishi Flash Plug PCM <<<< Pin 4 INVECS <<<< Phone/Audio 3.5mm Stereo Jack 4x4 Extreme Sports v0. Page 0 of 4

11 Transmission Input/Output Speed Sensors >>>> Pin 03.5mm 2 >>>> 350 Ω, 3 W resistor PCM >>>> Pin 04.5mm 2 >>>> >>>> Pin 24.5mm 2 >>>> 250 Ω, 3 W resistor. kω, W resistor ECM Harness Plugs <<<< Pin 57 <<<< output shaft speed* x current transmission gear ratio = input shaft speed* * speed = number of pulses 4x4 Extreme Sports v0. Page of 4

12 997 Mitsubishi Montero Sport 3.0L ECM M/T & A/T 4x4 Extreme Sports v0.4 Page 2 of 4

13 999 Mitsubishi Montero Sport 3.5L PCM A/T 4x4 Extreme Sports v0.4 Page 3 of 4

14 Wire Gauge Conversion Table No code indicates 0.5 mm2 American Wire Gauge Diameter (in) Diameter (mm) Cross Sectional Area (AWG) (mm2) AWG mm2 AWG mm2 AWG mm2 AWG mm / MCM MCM MCM / MCM / MCM / MCM 500 4x4 Extreme Sports v0.4 Page 4 of 4